3993693 has 8 divisors (see below), whose sum is σ = 5809056. Its totient is φ = 2420400.

The previous prime is 3993683. The next prime is 3993701. The reversal of 3993693 is 3963993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3993693 - 2¹⁶ = 3928157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3993653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60478 + ... + 60543.

It is an arithmetic number, because the mean of its divisors is an integer number (726132).

Almost surely, 2^3993693 is an apocalyptic number.

3993693 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3993693 is a deficient number, since it is larger than the sum of its proper divisors (1815363).

3993693 is a wasteful number, since it uses less digits than its factorization.

3993693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121035.

The product of its digits is 118098, while the sum is 42.

The square root of 3993693 is about 1998.4226279744. The cubic root of 3993693 is about 158.6566301547.

The spelling of 3993693 in words is "three million, nine hundred ninety-three thousand, six hundred ninety-three".